Stove construction



y 4, 1929. w. F. ROGERS STOVE CONSTRUCTION 2 Sheets-Sheet 1 Filed Nov.29, l926 May 14, 1929. w. F. ROGERS STOVE CONSTRUCTION Filed Nov. 29,1926 2 Sheets-Sheet 2 (fla /441%,

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Patented May 14,1929.

WALTER ROGERS, OF CHICAGO, ILLINOIS.

STOVE CONSTRUCTION.

Application filed November 29, 1926. ,Serial No. 151,410.

This invention relates to a hot air circulating heater combined with agas stove of the kitchen range type.

The main objects of this invention are to provide a circulating heaterwhich will warm up the air in the room in which it is placed at the sametime as it heats the top or cooking plate of the stove.

An illustrative embodiment of this invention is shown in theaccompanying drawings,

in which Fig. 1 is a side elevation of a gas range having this improvedform of circulating heater.

Fig. 2 is a front elevation of one end of the same, showing thedischarge end of the air heater.

Fig.3 is a plan view of the burner showing 'its position in the burnercompartment, taken on the line 33 of Fig.5.

Fig. 4 is a section taken on the line 4-4 of Fig. 2.

Fig. 5 is a section taken on the line 5 5 of Fig. 4.

Fig. 6 is a section taken on the line 66 of Fig. 5.

1n the construction shown in the drawings, a gas range 1 is shownprovided with a burner compartment 2, formed by housing walls whichcomprise a front wall 3, a back wall 4, a top plate 5, bottom 6, and.sides 7 and 8. This burner compartment is substantially rectangular inshape, and has extending therethrough from the back wall to the frontwall a hot air circulating heating duct 9, which has its rearend 10turned downwardly in a substantially vertical position so that theopened end 11 thereof is adjacent the lower edge of the burnercompartment 2. The vertically extending portion 10 of the heating ductis located outside of the compartment 2, and forms an inlet for airfrom,

the outside room.

The. longitudinally disposed portion 9 of the air duct extends throughthe back wall 4 of the compartment and out through the front wall 3, thefront end thereof having a grid 12 mounted therein. The inlet and outletend of the air duct communicates with the air outside of the burnercompartment 2, and is closed so that no communication is provided withsaid burner compartment. The duct is substantially rectangular in shape,of smaller dimensions than the burner compartment, and is centrallylocated therein so that the side walls 14 and 15 are spaced the Inent.

away from the walls 7 and 8 respectively of burner compartment, thusproviding passageways for the hot air from the burner to pass up aroundand heat the duct 9. The top and bottom walls 16 and 17 res ectively arespaced away from the top and bottom walls 5 and Grespectively of theburner compartment.

A burner 18 is located in the lower part of 6 the burner compartment 2for heating the duct 9 and thetop plate 5. Means are pro- Vided forcausing the heat from the burner 18 to be conducted to the under side ofthe front end of the top plate 5 so that heat will travel along thelength of said top plate, and

comprise a pair of plates 19 and 20 secured to the top side 16 of saidduct 9. These plates form, with the duct, a partition which closes thepassages at the sides of duct 9, between the duct and the side walls ofthe burner compartment, from a point at the rear wall 4, forwardly to apoint terminatingadjacent the front wall 3 of the burner compart- Thefront ends 21 and 22 of plates 19 and 20 respectively are turned up toclose the space between the plates and the top plate 5 of the burnercompartment, and are so arranged and spaced relative to the top plate asto cause the heat from the burner 18 to pass through a narrow restrictedopening formed by the spaced adjacent ends 23 of the bafile plates 21and 22. A flue 24, which communicates with the burner compartment 2, isprovided at the top rear corner of said burner compartment and thebottom 6 of said burner compartment is provided with a series of smallapertures 25 for admitting air to mix with the fuel in order to securecomplete combustion of said fuel.

Spaced slightlyfrom the side walls 7 and 8 .of the burner compartmentare walls 26 and 27 respectively, which form vertically disposed narrowpassageways for air which enters at the bottom edge of the burnercompartment, as shown in Fig. 5, and after being heated by the sidewalls 7 and 8 passes out through apertures 28 formed in the top plate 5.l

In the operation ofthis stove, when the fuel is ignited at the burner18, air passes up through apertures 25 in the bottom plate of the burnercompartment and mixes with the fuel. The heat from the products ofcornbustion passes up around the side walls of the air duct 9 againstthe under sides of the .jacent to the front end of the top plate 5,

where the plates terminate. At this point the gases pass upwardlythrough the open passageways against the under side of top plate 5,thence rearwardly through the restricted opening formed by the bafileplates 21 and 22 along the under side of top plate 5 tothe flue 24,which is located at the extreme rear edge of said plate.

In this manner the heat from the burner heats all sides of the air duct9 as well as the top cooking plate 5. Heating of the air duct causes theair therein to be discharged through the grid 12 and fresh air to bedrawn in through the open end 11 of the duct. The heat from the burneralso heats the said walls 7 and 8 of the compartment, thus heating theair in the passageways formed by the walls 26 and 27 to cause the air tobe circulated up- Wardly and discharged through the openings 28 of thetop plate 5.

Although but one specific embodiment of this invention has been hereinshown and described, it will be understood that numerous details of theconstruction shown may be altered or omitted without departing from thespirit of this invention as defined by the following claims.

I claim:

1. In a stove, a housing forming a compartment, a heating duct extendingsubstantially horizontally through said compartment and having nocommunication therewith, said duct having an inlet and an outlet eachcommunicating with the air outside of said compartment, the inlet end ofsaid duct being at the back of said compartment and being turned downina substantially vertical position,the lower end thereof being adjacentthe lower edge of said compartment, 2. burner in said compartment forheating said duct, a top plate forming the top side of said compartment,a flue communicating with said compartment adjacent one edge of said topplate, means 101' conducting the heat from said burner to the under sideof said top plate at the end opposite to said flue, and means forconcentrating the heat at the inter mediate portions of said top plateso as to cause the major portion of said heat to travel along theintermediate portions of said top plate substantially throughout thelength thereof.

2. In a store, a housing forming a compartment, a heating duct extendingsubstantially horizontally through said compartment and having nocommunication therewith, said duct having an inlet and an outlet eachconimunicating with the air outside of said compartment, the inlet endof said duct being at the back of said compartment and being turned downin a substantially vertical position, the lower end thereof beingadjacent the lower edge of said compartment, :1 burner in saidcompartmcntfor heating said duct, a top plate forming the top side ofsaid compartment, a flue communicating with said compartment adjacentone edge of said top plate, a horizontally disposed partition in saidcompartment located below said flue outlet and extending from the backwall and both side walls of said compartment forwardly terminatingadjacent to but spaced away from the front wall of said compartment soas to conduct the heat from said burner to the underside of said topplate at the end opposite to said flue so as to cause said heat totravel along the length of said top plate, and diagonally disposedvertical partitions at the forward end of said horizontal partitions forconcentrating the heat at the intermediate portions of the top of saidduct and top plate.

Signed at Chicago this 26th day of Nov., 1926.

\VALTER F. ROGERS.

